Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan cung te snippets" » "phan cong te snippets", "phan ung te snippets", "phan xuong te snippets", "phan cung me snippets", "phan cung ta snippets", "phan cung tu snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("phan cung te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan cung te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan cung te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan cung te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.